CN215715293U - Pile foundation steel protects a construction location structure - Google Patents

Abstract

The utility model discloses a pile foundation steel casing construction positioning structure, which belongs to the field of steel casing construction and comprises a plurality of positioning piles and a limiting frame, wherein the positioning piles are distributed on the outer side of a pre-installation position of a steel casing in a triangular mode, the limiting frame is connected with the tops of the positioning piles, the limiting frame comprises three limiting beams which are arranged in a regular triangle mode, the three limiting beams are connected end to end, a fine adjustment bolt is arranged in the middle of each limiting beam, and the top end of each fine adjustment bolt is arranged inwards. The limiting frame is fixed by arranging the positioning piles, the structure is simple, and the precision requirement on the mounting positions of the positioning piles is low, so that the construction difficulty is reduced; the locating pile and the limiting frame can be repeatedly used, the cost is saved, the limiting frame is fixed through the locating pile, the stability of the steel casing in the construction process is guaranteed, and the verticality of the steel casing is further guaranteed.

Description

Pile foundation steel protects a construction location structure

Technical Field

The utility model relates to the field of steel casing construction, in particular to a pile foundation steel casing construction positioning structure.

Background

When the existing bridge is designed, a pile group consisting of a plurality of cast-in-situ bored piles can be designed to serve as the foundation of the bridge, so that the stability of the bridge is ensured. In the actual construction process, because the riverbed covering layer is a silt or sand layer, in order to ensure the stability of the drilled hole, a steel casing penetrating through the silt or sand layer needs to be arranged at the hole opening of each pile foundation.

As a bridge foundation, the perpendicularity of pile foundation pore-forming is a key control factor for ensuring the construction quality of the pile foundation and the structural stability of the bridge. The perpendicularity of pile foundation pore-forming is controlled, and the mounting perpendicularity of the steel casing is guaranteed firstly. At present, a plurality of steel casing construction verticality control modes are provided, one of the modes adopts a level rule principle, and the verticality is controlled by ensuring the level of a casing through controlling the position of bubbles; secondly, a guide frame is adopted, and the guide frame in the shape of a Chinese character 'jing' is placed and fixed on the ground for positioning; and the third step is to control through a vertical line.

The construction of the steel pile casing is that a vibration hammer is used for hammering construction, in the construction process, the vibration frequency of the steel pile casing is high, and the bubbles generate violent vibration, so that the control by the bubbles cannot be realized in the construction process, and the inclination is easy to generate. If adopt the leading truck to assist the steel and protect a section of thick bamboo construction, because be difficult to fix the leading truck, lead to being difficult to accurate control steel protects a planar position and the straightness that hangs down of section of thick bamboo. If the mode of plumb line control also leads to the slope because of the violent vibrations of equipment easily, increases the rework operation, and inefficiency, the control degree of difficulty is big.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pile foundation steel casing construction positioning structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a pile foundation steel protects a construction location structure, includes a plurality of spuds and spacing, and is a plurality of the spud is the outside that triangular distribution protected a section of thick bamboo preinstallation position at the steel, spacing with a plurality of the top of spud is connected, spacing including the three spacing roof beam that is regular triangle setting, three spacing roof beam end to end connects, every the middle part of spacing roof beam all is equipped with the fine setting bolt, the top of fine setting bolt inwards sets up.

Preferably, the limiting frame further comprises three connecting beams, two ends of each connecting beam are connected with two adjacent limiting beams through welding, and the bottoms of the connecting beams are connected with the tops of the positioning piles through welding.

Preferably, the middle part of spacing roof beam inlays and is equipped with the fine setting nut, the fine setting bolt with fine setting nut screw-thread fit, the fine setting bolt is the M20 bolt.

Preferably, the limiting frame further comprises a detachable positioning rod, each connecting beam is arranged in parallel with one limiting beam, the positioning rods are arranged between the connecting beams and the limiting beams in parallel, a plumb part is arranged on each positioning rod, and the plumb part is located on the center of the limiting frame.

Preferably, the limiting frame further comprises a plurality of reinforcing ribs, and the reinforcing ribs are arranged between the adjacent limiting beams and the connecting beams.

Preferably, welding rib plates are arranged between the positioning pile and the limiting frame and are arranged on two sides of the positioning pile, the welding rib plates extend upwards to the bottom of the limiting beam, and the top of each welding rib plate is connected with the bottom of the limiting beam in a welding mode.

Preferably, the tops of a plurality of the positioning piles are flush.

The utility model has the beneficial effects that: the limiting frame is fixed by arranging the positioning piles, the structure is simple, the precision requirement on the mounting positions of the positioning piles is low, and therefore the construction difficulty is reduced; the positioning pile and the limiting frame can be repeatedly used, after one steel casing is constructed, the limiting frame and the positioning pile are removed, and the steel casing can be moved to the next pre-installation position for installation, so that the cost is saved; fix spacing through the spud pile, the spud pile inserts in the soil horizon, guarantees the stability in the steel protects a work progress, and then has guaranteed the straightness that hangs down of steel protecting a section of thick bamboo.

Drawings

The drawings are further illustrative of the utility model and the content of the drawings does not constitute any limitation of the utility model.

FIG. 1 is a schematic overall structure of one embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of M-M of one embodiment of the present invention.

Wherein: the positioning pile comprises a positioning pile 1, a limiting beam 2, a connecting beam 3, a reinforcing rib 4, a welding rib plate 5, a fine adjustment bolt 6, a positioning rod 7, a plumb part 71 and a steel casing 8.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

The pile foundation steel protects a construction location structure of this embodiment, including three spud 1 and spacing, three spud 1 is triangular distribution and protects a 8 outside of preinstallation position at the steel, and spacing is connected with a plurality of spud 1's top, and spacing is including being three spacing roof beam 2 that regular triangle set up, and 2 end to end connections of three spacing roof beam, and the middle part of every spacing roof beam 2 all is equipped with fine setting bolt 6, and fine setting bolt 6's top inwards sets up.

When a section of thick bamboo 8 is protected to hoist and mount steel, a section of thick bamboo 8 is protected through the spacing entering preinstallation position of three spacing roof beam 2 to the steel, protects a section of thick bamboo 8 work progress at the steel, through the fine setting bolt 6 on the three spacing roof beam 2 of fine setting for the top of fine setting bolt 6 offsets with the outside that a section of thick bamboo 8 is protected to the steel, thereby guarantees the plane degree and the straightness that hangs down that a section of thick bamboo 8 was installed to the steel, protects a section of thick bamboo 8 construction completion back to the steel, can demolish spacing frame and extract spud 1, moves to next preinstallation position and installs.

Preferably, the limiting frame further comprises three connecting beams 3, and the left end and the right end of each connecting beam 3 are respectively connected with two adjacent limiting beams 2 through welding, so that the three limiting beams 2 are fixed, and the three limiting beams 2 are kept in a regular triangle arrangement; the bottom of the connecting beam 3 is connected with the top of the positioning pile 1 through welding, so that the positioning pile 1 is connected with the limiting frame. The connection of the connecting beam 3 and the positioning pile 1 is arranged, so that the situation that the positioning pile 1 is deviated due to collision of the steel pile casing 8 and the positioning pile 1 in the process of hoisting the steel pile casing 8 is avoided.

Preferably, the middle part of the limiting beam 2 is embedded with a fine adjustment nut, the fine adjustment bolt 6 is in threaded fit with the fine adjustment nut, and the fine adjustment bolt 6 is an M20 bolt. Because three spacing roof beam 2 is regular triangle setting, the middle part of every spacing roof beam 2 all is tangent with the outside of a steel casing 8 promptly, consequently sets up the middle part of spacing roof beam 2 and inlays and be equipped with the fine setting nut for fine setting bolt 6 and fine setting nut screw-thread fit, thereby realize fine setting bolt 6 and protect a fine setting of 8 mounted positions to the steel. When the steel protects 8 installation in-process emergence squints, through the fine setting bolt 6 of adjusting relevant position for fine setting bolt 6 and fine setting nut cooperate and inwards stretch out and touch mutually with the outside of steel protecting 8, can realize protecting 8 mounted position's of steel fine setting. After the fine setting is accomplished, adjust fine setting bolt 6 and make the top of every fine setting bolt 6 all keep 5~8mm intervals with steel protects a section of thick bamboo 8, avoid causing the influence to the installation of steel protecting a section of thick bamboo 8.

Preferably, the limiting frame further comprises a detachable positioning rod 7, each connecting beam 3 is arranged in parallel with one limiting beam 2, the positioning rod 7 is arranged between the connecting beams 3 arranged in parallel and the limiting beams 2, a plumb part 71 is arranged on the positioning rod 7, and the plumb part 71 is located on the centroid of the limiting frame. The locating lever 7 is connected with the middle points of the connecting beam 3 and the limiting beam 2 which are arranged in parallel, so that the plumb part 71 on the locating lever 7 is located at the centroid position of the plane of the limiting frame, the plumb part 71 is used for setting plumb when the limiting frame and the locating pile 1 are installed, the relative position of the plane of the limiting frame is determined by controlling the plumb and the coordinate coincidence of the pre-installation position, the locating pile 1 is fixed with the limiting frame through welding after locating, the locating lever 7 can be detached, and the influence on the hoisting of the steel casing 8 is avoided.

Preferably, the limiting frame further comprises a plurality of reinforcing ribs 4, and the reinforcing ribs 4 are arranged between the limiting beams 2 and the connecting beams 3 which are adjacently arranged. From this, set up strengthening rib 4 and guaranteed the structural strength between spacing roof beam 2 and the tie-beam 3.

Preferably, a welding rib plate 5 is arranged between the positioning pile 1 and the limiting frame, the welding rib plate 5 is arranged on two sides of the positioning pile 1, the welding rib plate 5 extends upwards to the bottom of the limiting beam 2, and the top of the welding rib plate 5 is connected with the bottom of the limiting beam 2 through welding. From this, set up welding rib plate 5 and increased the welding area between pilot pile 1 and tie-beam 3, guarantee the intensity of being connected between tie-beam 3 and the pilot pile 1.

Preferably, the tops of the three spuds 1 are flush. From this, guarantee the plane degree of spacing installation, adjust 1 top parallel and level of spud and realize through modes such as cutting, pad sheet steel.

The installation process of the steel casing 8 construction positioning structure of the embodiment is as follows: firstly, mounting three positioning piles 1 with the specification of phi 630mm multiplied by 8mm on the outer side of the pre-mounting position of the steel casing 8 in a triangular distribution manner, wherein the deviation of the mounting position of the positioning piles 1 is +/-10 cm; then, leveling the top of the positioning pile 1 by adopting a gyroscope for assistance; adopt 40a I-steel welding process to form spacing, wherein the size of tie-beam 3 and spacing roof beam 2 can protect a section of thick bamboo 8 diameter adjustment according to the steel, guarantee that the triangle-shaped inscribe circle diameter that three spacing roof beam 2 formed is greater than a section of thick bamboo 8 diameter 2~5cm can, rethread locating lever 7 installation plumb line location preinstallation position coordinate point location guarantees that spacing installs at the settlement position, link to each other through the welding between spacing and the 7 stakes of locating lever after the location is accomplished, then lift off locating lever 7, can accomplish the installation between spacing and the spud 1.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (7)

1. The utility model provides a pile foundation steel protects a construction location structure, a plurality of including a plurality of spuds and spacing, a plurality of the spud is the outside that triangular distribution protected a section of thick bamboo preinstallation position at the steel, spacing with a plurality of the top of spud is connected, spacing is including the three spacing roof beam that is regular triangle setting, and is three spacing roof beam end to end connects, every the middle part of spacing roof beam all is equipped with the fine setting bolt, the top of fine setting bolt inwards sets up.

2. The pile foundation steel casing construction positioning structure of claim 1, wherein the limiting frame further comprises three connecting beams, two ends of each connecting beam are respectively connected with two adjacent limiting beams through welding, and the bottoms of the connecting beams are connected with the tops of the positioning piles through welding.

3. The pile foundation steel casing construction positioning structure of claim 1, wherein a fine adjustment nut is embedded in the middle of the limiting beam, the fine adjustment bolt is in threaded fit with the fine adjustment nut, and the fine adjustment bolt is an M20 bolt.

4. The pile foundation steel casing construction positioning structure according to claim 2, wherein the limiting frame further comprises a detachable positioning rod, each connecting beam is arranged in parallel with one limiting beam, the positioning rod is arranged between the connecting beam and the limiting beam, the positioning rod is provided with a plumb part, and the plumb part is positioned on the center of the limiting frame.

5. The pile foundation steel casing construction positioning structure of claim 2, wherein the limiting frame further comprises a plurality of reinforcing ribs, and the reinforcing ribs are arranged between the adjacent limiting beams and the connecting beams.

6. The pile foundation steel casing construction positioning structure according to claim 1, wherein welding rib plates are arranged between the positioning pile and the limiting frame, the welding rib plates are arranged on two sides of the positioning pile, the welding rib plates extend upwards to the bottom of the limiting beam, and the top of each welding rib plate is connected with the bottom of the limiting beam through welding.

7. The pile foundation steel casing construction positioning structure of claim 1, wherein the tops of the positioning piles are flush.

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